It seems the kernel's hid-touchscreen module has bound to the device:
$ ll /sys/bus/hid/drivers/hid-multitouch/ total 0 drwxr-xr-x 2 root root 0 Apr 23 12:59 ./ drwxr-xr-x 4 root root 0 Apr 23 12:59 ../ lrwxrwxrwx 1 root root 0 Apr 23 12:59 0003:06CB:11EF.0004 -> ../../../../devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/0003:06CB:11EF.0004/ --w------- 1 root root 4096 Apr 23 12:59 bind lrwxrwxrwx 1 root root 0 Apr 23 12:59 module -> ../../../../module/hid_multitouch/ --w------- 1 root root 4096 Apr 23 12:59 new_id --w------- 1 root root 4096 Apr 23 12:59 uevent --w------- 1 root root 4096 Apr 23 12:59 unbind tj@T300CHI:~$ lsusb Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 008: ID 06cb:11ef Synaptics, Inc. Bus 001 Device 005: ID 04f2:b3d5 Chicony Electronics Co., Ltd Bus 001 Device 003: ID 8087:0a2a Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
tj@T300CHI:~$ cat /sys/bus/hid/drivers/hid-multitouch/0003\:06CB\:11EF.0004/modalias hid:b0003g0004v000006CBp000011EF
It seems the kernel's hid-touchscreen module has bound to the device:
$ ll /sys/bus/ hid/drivers/ hid-multitouch/ ./../devices/ pci0000: 00/0000: 00:14.0/ usb1/1- 7/1-7:1. 0/0003: 06CB:11EF. 0004/ ./../module/ hid_multitouch/
total 0
drwxr-xr-x 2 root root 0 Apr 23 12:59 ./
drwxr-xr-x 4 root root 0 Apr 23 12:59 ../
lrwxrwxrwx 1 root root 0 Apr 23 12:59 0003:06CB:11EF.0004 -> ../../.
--w------- 1 root root 4096 Apr 23 12:59 bind
lrwxrwxrwx 1 root root 0 Apr 23 12:59 module -> ../../.
--w------- 1 root root 4096 Apr 23 12:59 new_id
--w------- 1 root root 4096 Apr 23 12:59 uevent
--w------- 1 root root 4096 Apr 23 12:59 unbind
tj@T300CHI:~$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 008: ID 06cb:11ef Synaptics, Inc.
Bus 001 Device 005: ID 04f2:b3d5 Chicony Electronics Co., Ltd
Bus 001 Device 003: ID 8087:0a2a Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
tj@T300CHI:~$ cat /sys/bus/ hid/drivers/ hid-multitouch/ 0003\:06CB\ :11EF.0004/ modalias 000006CBp000011 EF
hid:b0003g0004v